feat(ghidra): admit ARM PE targets on Windows (#3965)

Admit Windows ARMNT/Thumb-2 and ARM64 PE targets using preserved COFF machine facts. Keep unsupported machine gates explicit and distinguish loader-selected versus configured language provenance.

Verified with real Windows Ghidra 12.1.4 CLI/MCP workflows, ARM fixtures and Microsoft-signed Coreinfo ARM64 / MSVCR120 ARM inputs. Resource limits, analyzer overrides, startup timeout observations and verification gaps are documented in the PR. Final CI and automated review passed.

Fixes #2186

src/domain/binaryTargetTypes.ts

@@ -195,6 +195,8 @@ export type BinaryTarget =
     })
   | (ExecutableTarget & {
       readonly format: "pe";
+      /** Original COFF machine; undefined means this header fact is unavailable. */
+      readonly peMachine?: number;
       /** Provider-neutral PE image role observed from COFF characteristics. */
       readonly executableRole:
         | "application"